München 2004 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 27: Fallen und Kühlung
Q 27.8: Vortrag
Dienstag, 23. März 2004, 18:15–18:30, HS 224
Two-dimensional trapping of dipolar molecules in time-varying electric fields — •T. Junglen, T. Rieger, S.A. Rangwala, P.W.H. Pinkse, and G. Rempe — Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching
Cold molecular samples offer new perspectives in atomic and molecular physics, in particular high-precision measurements and collisional physics studies. These fields would benefit from new methods to produce and manipulate such samples. Recently, we have obtained two-dimensional trapping of low-field seeking polar molecules in electrostatic fields [1]. However, high-field seeking molecules cannot be trapped as Maxwell’s equations do not allow free-space maxima in electrostatic fields. We here report on two-dimensional trapping of cold dipolar molecules in an electrodynamic trap [2]. Slow ND3 molecules from an effusive source are guided between four 50 cm long rods driven by an alternating electric potential at frequencies of a few kHz. With this method a trapping potential of the order of 10 mK can be obtained for low-field seeking states, slightly less for high-field seeking states.
[1] S.A. Rangwala et al., Phys. Rev. A 67, 043406 (2003)
[2] T. Junglen et al., ArXiv:Physics/0310046